[Intel-gfx] [PATCH 4/4] drm/i915/icl: Handle GT interrupts after enabling master

[Mika Kuoppala]

Don't keep master disabled while we handle the current
interrupts. This should help a little on latency of
generating the next interrupt.

Suggested-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_irq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 5d1f53723388..9d8d5fb68c84 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3163,9 +3163,6 @@ static irqreturn_t gen11_irq_handler(int irq, void *arg)
 		return IRQ_NONE;
 	}
 
-	/* Find, clear, then process each source of interrupt. */
-	gen11_gt_irq_handler(i915, master_ctl);
-
 	/* IRQs are synced during runtime_suspend, we don't require a wakeref */
 	if (master_ctl & GEN11_DISPLAY_IRQ) {
 		const u32 disp_ctl = raw_reg_read(regs, GEN11_DISPLAY_INT_CTL);
@@ -3183,6 +3180,7 @@ static irqreturn_t gen11_irq_handler(int irq, void *arg)
 
 	gen11_master_intr_enable(regs);
 
+	gen11_gt_irq_handler(i915, master_ctl);
 	gen11_gu_misc_irq_handler(i915, gu_misc_iir);
 
 	return IRQ_HANDLED;
-- 
2.17.1